{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203043806",
    "entityType": "User",
    "nonce": "0x10c5e063131519adb7ed09d9e10d68013fc0bc8101059a7aee6d7a74fc531e82",
    "signature": "0x22adc015265fe2e579583aeee56a8d16a15dcedb3905561435dbc26495dbb96269094d8afda22d40fd6932e44a7959d658cfce3f13a14bbfdd5423749a3e09c41b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}